Is it electrically erasable programmable (EEPROM) or Flash? —Name withheld ——— I reached out to a few folks to be sure to answer your question properly. Roger Stewart, a patent expert in the radio frequency identification field, says all chips he knows of use EEPROM...
Specifically, is there a low-cost reader and tag configuration available that will detect moisture from a distance of approximately 3 feet? —Name withheld ——— Most RFID-based moisture sensors are active tags that have a battery and can transmit over longer distances...
Please provide some information about this application. Thanks. —Name withheld ——— Well, it would depend, I guess, on the type of parts and dealership you're referring to. For the purpose of responding, I'll assume you mean car parts and an automotive dealership. The...
Would such a device connect to a battery? Is there a vehicle-tracking unit that also has this function built in, in order to somehow track both the driver and the vehicle? —Robin ——— Robin, I am unaware of such a product. Today's cars include a high-frequency (HF)...
In addition, are there any NIST/ANSI RFID antenna standards for resistivity? —Dave. ——— Dave, "Maximum resistivity" sounds like something I received from girls in high school. Since I had never heard the term before receiving your question, I reached out to Stephen...
If I have two circular polarized antennas on each side of a door, should one be left-polarized and the other right-polarized? —Name withheld ——— Good question. I assume you are talking about a passive ultrahigh-frequency (UHF) Gen 2 RFID system. To answer your...
Please explain. —Name withheld ——— To answer your question, I reached out to Steve Halliday, the president of High Tech Aid, a consulting firm specializing in automatic identification and data-collection (AIDC) technologies. According to Steve, pulse interval encoding...
If not, would it be possible? And if yes, how? —Name withheld ——— There are a few products currently on the market. A company called iAutomate has developed the HomeSeer RFID Starter Kit, which includes a long-range reader and software that can be configured to...
Is there a radio frequency identification chip available that can provide this function, and also fit inside a cylinder measuring 9.3 millimeters (0.4 inch) or less? Also, do I need an antenna of some sort to track the chip at this distance? If so, what would be the...
Where might I find a list of manufacturers of machines that can insert chips into inlays? —Name withheld ——— There are two main companies that offer machines for assembling RFID transponders. One is Bielomatik, based in Neuffen, Germany, and the other is Muehlbaer,...
Tags are said to store unique numbers. Is this true only for a particular system, or for all RFID transponders? And how does a passive RFID tag modulate radio waves coming from a reader? —Name withheld ——— There are many ways in which serial numbers are assigned to...
Ten years on, we have reached a milestone.